Which of the following is not correct regarding nitrogen?
A)The atmosphere contains about 78% nitrogen.
B)Bacterial action is key to the nitrogen cycle.
C)Atmospheric nitrogen is accessible directly to most organisms.
D)Nitrogen is very important to organisms.
E)Over fertilization of agricultural fields with synthetic nitrogen has led to water pollution.

Question

Quizplus · Accepted Answer

Atmospheric nitrogen cannot be accessed directly by most organisms, as it is in a form that is not easily usable. It must first be converted into other forms such as ammonia or nitrate by nitrogen-fixing bacteria.

Which of the Following Is Not Correct Regarding Nitrogen